Search a number
-
+
1272083983 is a prime number
BaseRepresentation
bin100101111010010…
…0111011000001111
310021122122120011121
41023310213120033
510101123141413
6330121101411
743344351442
oct11364473017
93248576147
101272083983
115a3070585
122b6027867
13173712721
14c0d35659
1576a28b8d
hex4bd2760f

1272083983 has 2 divisors, whose sum is σ = 1272083984. Its totient is φ = 1272083982.

The previous prime is 1272083971. The next prime is 1272084059. The reversal of 1272083983 is 3893802721.

It is a weak prime.

It is an emirp because it is prime and its reverse (3893802721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1272083983 - 217 = 1271952911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272083903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636041991 + 636041992.

It is an arithmetic number, because the mean of its divisors is an integer number (636041992).

Almost surely, 21272083983 is an apocalyptic number.

1272083983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272083983 is an equidigital number, since it uses as much as digits as its factorization.

1272083983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1272083983 is about 35666.2863640161. The cubic root of 1272083983 is about 1083.5241482793.

The spelling of 1272083983 in words is "one billion, two hundred seventy-two million, eighty-three thousand, nine hundred eighty-three".